Associate Dean Katheleen Guzman served as Visiting Associate Professor at OU during the 1993-94 academic year, and was hired as a permanent member of the OU law faculty in 1994. In 2003, she assumed the position of Associate Dean for the College of Law. She has taught property, wills and trusts, Indian land titles, land use, and real estate transactions.

Guzman served as articles editor for the Arkansas Law Review and participated in the Georgetown University Law Center Program in International Law in 1989. Before joining the OU faculty, Dean Guzman worked as a litigation associate for the Philadelphia firm of Dilworth, Paxson, Kalish, and Kauffman. She has been a visiting professor of law at Villanova.

A member of the Pennsylvania, Tennessee, and Arkansas Bars, Guzman is an active contributor to state and national newsletters published by the real property bar. More extensive scholarship appears in law reviews published by the University of Arkansas, Washington University, the University of California-Davis, the University of Iowa, Arizona State, and the University of Oklahoma. Guzman is currently working on an Oklahoma wills and trusts treatise with Professor Mark Gillett.